Chelsa Crowley, wife of Foursquare CEO Dennis Crowley, ran the Boston Marathon with a fake bib because the couple said they “felt like we needed to run again and finish together to get closure” after failing to finish the race last year.

A city grieved when two bombs exploded at the Boston Marathon finish line last year, killing three and injuring more than 260. But the violent, chaotic manhunt that came afterward left many traumatized in a different way.